"The SNP there, heralding a new #indyref poll that has 548 respondents and doesn't ask the actual #indyref question."
Hmmm. I might have more respect for smug comments of that sort if Kenny hadn't withheld crucial information about the jiggery-pokery that took place in his own publication's last ICM poll, while at exactly the same time leading people up the garden path with a tweet about how that poll would have been worse for Yes if a far less important methodological change had not been made.
In any case, one half of his objection to the Populus poll doesn't even make sense - there is no problem with a sample size of 500-odd. No problem at all. That kind of sample would be considered absolutely routine in the US, and indeed two out of Angus Reid's three indyref polls last year had samples of about 500. No, the only issue with the Populus subsample is that it probably wasn't weighted to Scottish demographic target figures - and that would still have been an issue even if the sample had been ten times as large.
As for the indyref question not having been asked, I wonder if Kenny had any sarcastic comment to make about Better Together's antics in respect of the last Progressive Partnership poll, which a) didn't use the indyref question, and b) was claimed to be a YouGov poll even though it wasn't? Perhaps he did say something, but he can't have said it very loudly.